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#ifndef OPENCV_CUDA_COMMON_HPP
#define OPENCV_CUDA_COMMON_HPP

#include <cuda_runtime.h>
#include "opencv2/core/cuda_types.hpp"
#include "opencv2/core/cvdef.h"
#include "opencv2/core/base.hpp"

/** @file
 * @deprecated Use @ref cudev instead.
 */

//! @cond IGNORED

#ifndef CV_PI_F
#ifndef CV_PI
#define CV_PI_F 3.14159265f
#else
#define CV_PI_F ((float)CV_PI)
#endif
#endif

namespace cv {
    namespace cuda {
        static inline void
        checkCudaError(cudaError_t err, const char *file, const int line, const char *func) {
            if (cudaSuccess != err)
                cv::error(cv::Error::GpuApiCallError, cudaGetErrorString(err), func, file, line);
        }
    }
}

#ifndef cudaSafeCall
#define cudaSafeCall(expr)  cv::cuda::checkCudaError(expr, __FILE__, __LINE__, CV_Func)
#endif

namespace cv {
    namespace cuda {
        template<typename T>
        static inline bool isAligned(const T *ptr, size_t size) {
            return reinterpret_cast<size_t>(ptr) % size == 0;
        }

        static inline bool isAligned(size_t step, size_t size) {
            return step % size == 0;
        }
    }
}

namespace cv {
    namespace cuda {
        namespace device {
            __host__ __device__

            __forceinline__ int divUp(int total, int grain) {
                return (total + grain - 1) / grain;
            }

            template<class T>
            inline void bindTexture(const textureReference *tex, const PtrStepSz <T> &img) {
                cudaChannelFormatDesc desc = cudaCreateChannelDesc<T>();
                cudaSafeCall(
                        cudaBindTexture2D(0, tex, img.ptr(), &desc, img.cols, img.rows, img.step));
            }
        }
    }
}

//! @endcond

#endif // OPENCV_CUDA_COMMON_HPP
